SBS Expansion Joint (Wall)

RoofStar Guarantee Standards are blue-linked

SBS Details

Click below for a printable version of this page.

(1) Air or Vapour Control Layers: The requirement for a vapour retarder is determined by the design authority. Optional terminations.
(2) Insulation
(3) Insulation Overlay: Where required.
(4) Primary Membrane and Membrane Protection
(5) Membrane Flashing: Mechanically fasten to top of wood blocking.
(6) Membrane Counter-flashing: Flashing sealed to wall with compatible mastic.
(7) Metal Base Flashing: Mechanically fasten to top of wood blocking (C). Optional on flexible membrane systems. Required on assemblies using gravel ballast filter mats.
(8) Metal Counter-flashing: Into reglet approximately 30 mm (1¼") and caulked.
(9) Caulking
(10) Membrane Underlay: Minimum self-adhered modified bitumen membrane.
(11) Metal Cap Flashing: Must overlap exterior wall finish. Fasten with continuous concealed clip-type fasteners or cladding screws evenly spaced between seams.

(A) Acceptable Supporting Deck Structure
(B) Air and Vapour Control Layer Seal: Sealed to wall.
(C) Wood Blocking: Height to provide minimum 200 mm (8") above completed roof system, slope top edge.
(D) Flexible Insulation
(E) Reglet
(F) Sloped Wood Blocking

NOTE: Refer to RoofStar Guarantee Standards for additional requirements.